Biodiversity is the variation in living organisms, viewed within a given habitat, ecosystem or in the world as a whole. The concept is usually applied to the species diversity, although the notion of genetic biodiversity is applied to the variation in genes within an individual species. While most people think of rainforests as loci of great biodiversity, biomes such as oceans and grasslands are the likely repositories for even greater variation. Retention of diverse biota is important, since intact ecosystems are thought to be essential for provision of ecosystem services to humans, including maintenance of a diverse foodbank, pollination, clean water, flood control, pest control, waste decomposition, biomass energy resources and climate stability. Biodiversity is presently critical since we live in the era of the Mass Holocene Extinction, a period of species loss caused by man, and unrivaled in rate of species loss. Although the number of total species numbers in the tens of millions, most have not yet even been described. The extinction of a species is almost always related to destruction of habitat or man-made pollution.
The Burnt Cape is a limestone barren headland on the extreme northwest of the Northern Peninsula of Newfoundland, Canada. The prevailing harsh cold climate and calcareousSoils which are high in limestone content...
Cubozoans are astounding animals. They resemble basic jellyfish, but they can swim quite rapidly, maneuver with great agility, and have good vision despite not having a...
Great Basin shrub steppeLast Updated on 2013-06-18 at 04:23
The Great Basin shrub steppe ecoregion is situated in the most northerly of the four American deserts. Unlike the other three, which have almost exclusive ties to... More »
Tamarix controlLast Updated on 2013-06-17 at 17:10
Tamarix control is a significant invasive species issue in the western USA, especially in the American southwest. The woody plant genus Tamarix, also , also known by the... More »
Chihuahuan DesertLast Updated on 2013-06-16 at 21:48
The Chihuahuan Desert encompasses one of the most biologically diverse arid regions on Earth. This ecoregion extends from within the United States south into Mexico. This... More »
Colorado Plateau shrublandsLast Updated on 2013-06-16 at 21:44
The Grand Canyon epitomizes the Colorado Plateau, an area that has been called the "land of color and canyons." The Plateau can be thought of as an... More »
Mojave DesertLast Updated on 2013-06-16 at 21:42
The Mojave Desert is the smallest of the four American deserts. While the Mojave lies between the Great Basin Shrub Steppe and the Sonoran desert, its fauna is more closely... More »
Snake-Columbia shrub steppeLast Updated on 2013-06-16 at 21:36
The Snake/Columbia Shrub Steppe is a vast, mostly arid ecoregion. Its easternmost limit is the Continental Divide in eastern Idaho. From there, the ecoregion... More »